Pipe-bending tool.



0. WHITECOTTON.

PIPE BENDING TOOL.

APPLICATION FILED NOV. 7, 1911.

Patented Nov. 12, 1918.

awwuto z Oscar whifecoiton OSCAR WHITE-COTTON, or AKRON, OHIO.

PIPE-BENDING TOOL.

Specification of Letters Patent.

Patented Nov. 12, 1918.

Application filed November 7, 1917. Serial No. 200,766.

To all whom it may concern:

Be it known that I, OSCAR WHITECOTTON, a citizen of the United States,residing at Akron, in the county of Summit and State of Ohio, haveinvented new and useful Improvements in Pipe-Bending Tools, of which thefollowing is a specification.

This invention is an improved tool for use in bending conduit pipes andother pipes without flattening the same, the object of the inventionbeing to provide an improved tool of this character which is simple inconstruction, is strong and durable, which can be used either when inhorizontal position or in vertical position and which will work ineither direction, from the right or lefthand and which admits of a pipebeing readily arranged in position for bending and also enables the pipewhen bent to be readily disengaged and removed from the tool.

The invention consists in the construction, combination and arrangementof devices hereinafter described and claimed.

In the accompanying drawings Figure 1 is a plan of a pipe bending toolconstructed and arranged in accordance with my invention.

Fig. 2 is a longitudinal central sectional view of the same.

Fig. 3 is a transverse sectional view of the same on the plane indicatedbythe line 33 of Fig. 1.

In the embodiment of the invention here shown, a base plate 1 isprovided which is of suitable size and shape and which has openings 2near its corners for the reception of screws or bolts whereby the baseplate may be secured on a bench or other suitable supporting object. Abending form 3 is secured on the outer side of the base plate by boltsor rivets 1, preferably rivets. The bending form is segmental and isprovided with a peripheral groove 5 more perfect and will not flattenthe pipe while bending. A lever 6 is pivotally mounted near the innerend on a bolt 7 which passes through the center of the bending form 3and the base plate and extends clear through the bench or supportingobject. A second hole 7* is provided through the bending form 3cccentrically located and in which the pivot bolt 7 may be arranged andhence the wheel 9 may be caused to move toward the bent frame as thelever 6 is turned to either side of the base, such eccentric mounting ofthe lever being especially desirable when short bends are to be formedin a pipe. The bending form is recessed as at 8 on the side 0pposed tothe base plate to receive the pivoted end of the lever, as shown in Fig.2. A bending wheel 9 is mounted for rotation on a bolt 10 which passesthrough the lever and also through a fork-arm 11 with which the lever isprovided, the bending wheel being arranged at a suitable distance fromthe bending form and having a peripheral groove 12. A tubular handle 13is detachably screwed to the outer end of the lever as at 14.

A pipe holder and guiding bar 15 is arranged transversely with respectto the base plate 1 and is secured thereto by bolts 16, a spacer block17 being arranged between the base plate and said bar. The ends of thebar 15 are curved as at 18 and the length of said bar exceeds thediameter of the bending form, one of the curved ends of the bar 15 beingadapted to engage a pipe and to hold the pipe in groove 5 of the bendingform and with the pipe arranged at either side of the tool, as may bedesired.

To use the tool for bending a pipe the lever is first turned to one sideof the base plate and parallel with the bar 15, or substantially so toenable the pipe to be engaged with one of the jaws or ends 18 and heldin the grooves 5, 12 or between the bending form and the bending wheel.The lever is then turned in the required direction to cause the pipe tobe bent around the bending form by the action of the bending wheel, aswill be understood. The bending form may be marked to facilitatedetermining when the pipe has been bent to the desired degree and bycorrespondingly moving the lever the pipe may be bent to any degreedesired. By the arrangement of the bending form and bending wheel inspaced relation and with the space between them unobstructed on the sideopposite the lever and also by the arrangement of the holding andguiding bar 15 with its curved ends 18 the pipe may be readilydisengaged from the tool after having been bent and moreover the pipemay be applied to either side of the tool and the lever moved toward theright or toward the left as may be desired in bending the pipe.

While I have herein shown and described a preferred form of myinvention, I would have it understood that changes may be made in theform, proportion and construction of the several parts Without departingfrom the spirit of my invention and Within the scope of the appendedclaim.

Having thus described my invention, I claim A pipe bending tool of theclass described comprising a base plate, a segmental bending form on thebase plate, a lever pivotally mounted between the base plate and theform, a bending Wheel carried by the lever and arranged in spacedrelation to the bending form, and a pipe holding and guiding bar securedon the base plate near the bending form and provided at its ends withmeans to engage and hold a pipe when the latter is arranged at eitherside of the bending form.

In testimony whereof I aflix my signature.

OSCAR WHITECOTTON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

